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Charles Babbage is generally considered ________ the first computer.

A. to invent     B. inventing     C. to have invented     D. having invented

Charles Babbage is generally considered______-the first computer.

          A. to invent   B .inventing   C. to have invented   D. having invented

Charles Babbage is generally considered _______    the first computer.

              A. to invent            B. inventing           C. to have invented   D. having invented

 Charles Babbage is generally considered ____ the first computer.

A. to invent      B. inventing     C. to have invented   D. having invented

Charles Babbage is generally considered ______ the first computer.

      A. to invent           B. inventing          C. to have invented    D. having invented

.   Charles Babbage is generally considered _______    the first computer.

 A. to invent            B. inventing           C. to have invented D. having invented